(Nylabone) The Nylabone Advanced Oral Care Treat Holder keeps dogs busy and entertained while promoting good dental health. Treat Holder comes with four Rawhide Bars, crunchy dental chew treats that help remove plaque and tartar while they freshen breath. Treat Holder features raised textures that help to massage gums while removing plaque and tartar buildup. Helps improve the appearance of teeth and gums. Refill with Dental Bars or other treats, kibble or peanut butter.